I went from being a happy kid that smiled all the time, enjoyed drawing and had several friends to a pathetic adult with no talents, passion, creativity, friends or a job. Just a worthless and unlovable failure. And recently it's gotten so bad that I've started cutting myself and contemplating suicide. I just don't believe I have what it takes to get my life together, sadly.
You haven't failed at life, this life has failed you. Remember that we live on a prison planet. Human life is worthless here and your only purpose is to generate profit for capitalists. It's impossible to fail at life if your life was determined to be miserable from the moment you were born in a capitalist dystopia.
The only way out of this hellscape is a communist revolution. But while we're waiting for that to happen (and doing whatever we can to bring it closer), you can take care of yourself and people around you. You can also join the based department